EP3270055A1 - Luminaire - Google Patents

Luminaire Download PDF

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Publication number
EP3270055A1
EP3270055A1 EP17178913.4A EP17178913A EP3270055A1 EP 3270055 A1 EP3270055 A1 EP 3270055A1 EP 17178913 A EP17178913 A EP 17178913A EP 3270055 A1 EP3270055 A1 EP 3270055A1
Authority
EP
European Patent Office
Prior art keywords
cover
sealing lip
edge
luminaire
web
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP17178913.4A
Other languages
German (de)
English (en)
Other versions
EP3270055B1 (fr
Inventor
Helmut Feurle
Tanja Fussenegger
Michael Spiegel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zumtobel Lighting GmbH Austria
Original Assignee
Zumtobel Lighting GmbH Austria
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zumtobel Lighting GmbH Austria filed Critical Zumtobel Lighting GmbH Austria
Publication of EP3270055A1 publication Critical patent/EP3270055A1/fr
Application granted granted Critical
Publication of EP3270055B1 publication Critical patent/EP3270055B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V31/00—Gas-tight or water-tight arrangements
    • F21V31/005—Sealing arrangements therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V15/00—Protecting lighting devices from damage
    • F21V15/01—Housings, e.g. material or assembling of housing parts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
    • F21V17/16—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening by deformation of parts; Snap action mounting
    • F21V17/164—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening by deformation of parts; Snap action mounting the parts being subjected to bending, e.g. snap joints

Definitions

  • the present invention relates generally to the field of lights with sealing function.
  • Such luminaires are moisture-proof luminaires which provide a corresponding degree of protection (for example at least IP6 7 ).
  • Such luminaires generally have, on the one hand, a luminaire housing and, on the other hand, a cover provided on the light emission side or light exit side, which is translucent and, in particular, serves for the light emission of the luminaire.
  • the lamp itself and preferably also the electronics of the lamp are surrounded by the lamp housing and the cover and preferably sealed according to the outside.
  • seals are usually provided in such lamps between the two aforementioned components. These seals require a relatively high contact pressure in order to achieve the desired tightness. This in turn requires a high stability of the lamp housing, the cover and the closures for connecting these two components.
  • a seal for example, a classic seal, such as a ring cord seal used. This is provided between these two components such that the interior of the lamp is sealed to the outside.
  • a corresponding seal can be provided or inserted laterally circumferentially. For this purpose, a groove is provided in which the seal is provided.
  • An alternative embodiment is the introduction of a sealing foam, which is introduced in accordance between the two components in order to seal the interior to the outside.
  • foams absorb moisture to some extent, which has a detrimental effect on the sealing function and also on the durability of the seal, so that the requirements of a certain degree of protection may no longer be maintained.
  • luminaires which have a sealing lip between the lamp housing on the one hand and the cover on the other hand.
  • Such a configuration usually requires additional mechanical support elements for holding the cover to the lamp housing.
  • the present invention relates to a luminaire, comprising a luminaire housing with a laterally peripherally closed edge, through which a light exit area is defined, and a translucent (eg transparent) cover, which is arranged in the light exit area. Furthermore, a circumferentially closed seal with a first and a second circumferentially closed sealing lip is provided.
  • the first sealing lip extends between the edge and the cover and cooperates with a locking profile for sealing and holding the cover to the lamp housing.
  • the second sealing lip extends between the lamp housing and the cover so as to bias the first sealing lip in sealing engagement with the locking profile.
  • the sealing lips may be provided separately to form the seal or formed integrally with each other.
  • the seal By means of the lamp according to the invention, it is possible by the seal with two sealing lips both the function of sealing the lamp as well as the mounting of the lamp components together - so in particular the cover in the lamp housing - to accomplish in a simple way.
  • Different functions are provided by means of the sealing lips.
  • the sealing lips To serve both sealing lips functionally according to the sealing of the lamp components to each other.
  • the second sealing lip by means of appropriate design and arrangement, provides secure reception of the first sealing lip in the latching position while at the same time providing a relatively high contact pressure to achieve a desired tightness , In this way, a desired sealing function and support function can be achieved safely; without the use of additional and possibly separate support elements.
  • the first sealing lip is preferably fixed with a fixed end on the cover or on the lamp housing.
  • the second sealing lip with a fixed end to the cover or fixed to the lamp housing.
  • the respective free end of the sealing lip is then preferably in sealing contact with the respective other of the cover and the lamp housing in order to fulfill the functions described above.
  • these have a spring function when tightly formed by the correspondingly forced deformation in order to exert a biasing force against their deformation.
  • the second sealing lip may extend transversely between the cover and the edge in such a way that its fixed end is closer to the light exit region than its free end. In this way, in addition to a good sealing function in particular a bias to the first sealing lip can be achieved safely.
  • the lamp further comprises a circumferentially closed transverse wall of the luminaire housing extending laterally away from an end of the edge facing away from the light exit region and facing the light exit region.
  • the second sealing lip extends between the transverse wall and the cover to cooperate preferably with the transverse wall or the cover for sealing and biasing the first sealing lip.
  • a rear support of the second sealing lip can be provided, so that in a simple manner, a bias in the direction of the first sealing lip can be carried out to bias the first sealing lip in a secure manner to secure the cover.
  • the transverse wall also extends transversely to the edge, a secure sealing engagement of the second sealing lip is made possible. The resulting by manufacturing tolerances and different thermal expansion of the lighting components three-dimensional relative movements are thus particularly effectively absorbed by the seal, so that the seal prestressing constant and thus the seal always remains reliably tight throughout the service life.
  • the second sealing lip preferably extends transversely between the cover and transverse wall in such a way that its free end lies closer to the edge than its fixed end. In this way, a reliable sealing function can be provided with appropriate biasing function.
  • the first sealing lip may extend transversely between the cover and the edge such that its free end is closer to the light exit region than its fixed end. In this way, a corresponding holding function of the first sealing lip can be provided in cooperation with the corresponding latching profile. In addition, the sealing function is improved, since the first sealing lip is pressed in pressure from the outside more in the sealing and holding position.
  • the second sealing lip extends between the lamp housing, preferably the edge or the transverse wall, and the cover, preferably to cooperate with a further latching profile for sealing and biasing the first sealing lip.
  • the second sealing lip can be provided in addition to the first sealing lip in a sealing manner.
  • a secure support of the second sealing lip can be provided in order to achieve a secure pretensioning of the first sealing lip in addition to the sealing function.
  • Both the locking profile of the first sealing lip and the further locking profile of the second sealing lip may be part of the lamp housing or part of the cover and are particularly preferably formed integrally therewith.
  • the locking profiles can be formed circumferentially closed. It is also conceivable that the locking profiles are designed in several parts and are then preferably distributed over the circumference of the lamp or the lamp housing (evenly).
  • the cover may have a circumferentially closed and preferably annular web which preferably extends at a defined distance D along the cover edge.
  • the first sealing lip may be arranged on the web or rest against the web.
  • the second sealing lip may be arranged on the web or abut against the web.
  • the web may protrude toward the transverse wall with respect to the remaining cover; So therefore protrude from the rest of the cover in one direction, which points to an inner region of the lamp housing.
  • the cover can on the side facing away from the inner region of the lamp housing - ie on its outside - and in particular on the opposite side of the web and at least in a web opposite the web Area have a structuring, which preferably extends to the nearest cover edge.
  • the cover may be formed such that the intended bridge from the outside not or only a small extent (as such) can be seen to allow a substantially harmonious and uniform light output of the lamp on the cover and a uniform appearance of the light of to provide outside.
  • the latching profile and, if present, that further latching profile can be provided on one side of the edge facing the cover (in particular the radially end-side cover edge or the web) or on a side of the cover facing the edge (in particular the radially end-side cover edge or the web) ,
  • the latching profile or the further latching profile can be designed as in the space between the edge on the one hand and cover (in particular the radially end-side cover edge or the web) on the other hand protruding projection.
  • the preferred integral design of the locking profile with the cover or the lamp housing ensures that preferably no visible closure elements on the luminaire surface are visible outside, so that the aesthetic appearance of the lamp is improved. Thus, in addition costs for additional closure elements can be omitted.
  • the sealing lips are directed away from each other (their main directions of extension are therefore not parallel and enclose an angle) and preferably spread apart from each other.
  • the first sealing lip in cross-section is formed stronger than the second sealing lip.
  • the first sealing lip may have a higher spring constant than the second sealing lip. In this way it is possible, the sealing lip for holding function - ie the first sealing lip - form correspondingly stronger, in addition to the sealing function also safely accomplish the holding function.
  • the second sealing lip can be provided with less material and thus more cost-effective to provide their intended functions (seal and bias of the first sealing lip) material saving but safe.
  • the seal is connected to the cover (for example the web) or the luminaire housing, for example by means of a two-component injection technology.
  • the seal or at least one of the sealing lips may also be formed integrally with the cover or the luminaire housing.
  • the seal can thus be provided safely and inexpensively in any way.
  • the seal may be made of polyurethane (PUR).
  • PUR polyurethane
  • the cover itself is preferably made of a correspondingly known material, which is mechanically stable enough and also translucent. The material may, if desired, have light-influencing particles; For example, light-scattering and / or light-converting particles.
  • the luminaire housing and preferably its transverse wall, may have a circumferential guide web for the cover, which is located radially inward with respect to the seal and preferably extends toward the light exit area or the light exit area.
  • the cover with the inwardly projecting seal or the sealing lips can be defined defined to safely fulfill their functions.
  • a circumferential gap may be formed between the cover, in particular the end-side cover edge, and the luminaire housing, in particular the edge.
  • the cover circumferentially and preferably rests flat on the edge, preferably pressed by means of the first sealing lip on the edge in abutment.
  • the sealing lips By means of the sealing lips, the cover thus inserted is preferably centered in the luminaire housing.
  • the sealing lips also ensures a harmonious image even when looking into the gap, as essentially no support elements or the interior of the lamp can be seen.
  • the seal can be provided from a corresponding material or in a corresponding color, so that it is visually not visible from the outside (disturbing) and also causes no shading effects.
  • the cover except for a possibly provided web, is preferably flat.
  • a harmonious and aesthetic image of a lamp is produced for example for recessed lighting.
  • the FIGS. 1 and 2 show two embodiments of a lamp according to the invention 1. These are described below together and pointed to the differences.
  • the luminaire 1 according to the invention has a luminaire housing 2.
  • the luminaire housing 2 in turn has a laterally closed edge 3, by which a light exit area L is fixed.
  • the luminaire housing 2 may be made of metal, for example a sheet metal, of plastic or other materials.
  • the luminaire 1 has a translucent (eg transparent) cover 4, which is arranged in the light exit region L.
  • the cover 4 may also be made of a plastic material or glass.
  • the cover is provided as an injection molded part.
  • the lamp 1 also has a circumferentially closed seal 5.
  • the seal 5 is preferably made of a soft component such as polyurethane (PUR) provided.
  • PUR polyurethane
  • the gasket 5 can be produced, for example, by means of a two-component injection molding process together with the cover 4. However, it is also conceivable that the seal 5 is produced on the side of the luminaire housing 2 and preferably together with it in a two-component injection molding process.
  • the seal 5 has a first circumferentially closed sealing lip 51 and a second circumferentially closed sealing lip 52.
  • the first extends Sealing lip 51 between the edge 3 and the cover 4 and acts together with a locking profile 6 for sealing and holding the cover 4 to the lamp housing 2.
  • the first sealing lip 51 with a fixed end 510 on the cover 4 (see. FIGS. 1 and 2 ) or fixed to the luminaire housing 2 (not shown).
  • the respective free end 511 is then in sealing engagement with the other of the cover 4 and the lamp housing 2.
  • the locking profile 6 is provided on the side of the free end 511 on the corresponding component of cover 4 or - as shown - Luminaire housing 2 and preferably with this Component 2, 4 integrally formed.
  • the free end 511 here in its rest position (not biased state) is shown, wherein the first sealing lip 51 would of course be biased accordingly in operative connection and thus holds the cover 4 securely in the lamp housing 2.
  • the bias not only causes the holding function, but also provides the sealing function.
  • the first sealing lip 51 preferably extends transversely between the cover 4 and the edge 3 such that its free end 511 is closer to the light exit region L than its fixed end 510. In this manner, the first sealing lip 51 virtually braces into the latter Locking profile 6 in to keep the cover 4 securely in the lamp housing 2. In addition, a secure sealing function is provided in this way, since the seal is pressed under load from the outside further in their sealing contact.
  • the second sealing lip 52 extends between the lamp housing 2 and the cover 4 so as to bias the first sealing lip 51 in close contact with the locking profile 6.
  • the second sealing lip 52 is thus provided such that it presses the first sealing lip in the latching position and thus improves the mounting of the cover 4 in the lamp housing 2 and at the same time by a correspondingly relatively high contact pressure, the sealing function of the seal 5 improves overall.
  • the second sealing lip 52 may be arranged with a fixed end 520 fixed to the cover 4 or a lamp housing 2, wherein the respective free end 521 is in sealing contact with the other of the cover 4 and the lamp housing 2.
  • the bias of the second sealing lip 52 and this - as the first sealing lip 51 - is shown in the non-biased state in the figures.
  • the second sealing lip 52 extends between the lamp housing 2 (for example, the edge 3) and the cover 4, preferably with a further locking profile (not shown) for sealing on the one hand and bias the first sealing lip 51 on the other hand cooperate.
  • the second sealing lip 52 extends in such a way transversely between the cover 4 and the lamp housing 2 (for example, the edge 3) that its fixed end 520 is closer to the light exit region L as its free end 521.
  • the biasing effect of second sealing lip 52 are provided toward the first sealing lip 51 in the direction of action, in order to increase the holding and sealing function of the first sealing lip 51 and at the same time to achieve a high sealing effect of the second sealing lip 52 itself.
  • the lamp 1 further comprises a remote from the light exit region L end of the edge 3 laterally extending and the light exit region L facing circumferentially closed transverse wall 7 of the lamp housing 2.
  • the second sealing lip 52 extends between the transverse wall 7 and the cover 4, preferably to cooperate with the transverse wall 7 and the cover 4 for sealing and biasing the first sealing lip 51.
  • the second sealing lip 52 may extend transversely between cover 4 and transverse wall 7 such that its free end 521 is closer to the edge 3 than its fixed end 520.
  • the cover 4 may have a circumferentially closed and preferably annular web 40.
  • This web 40 may preferably extend with a defined distance D along the cover edge 41.
  • D of the web 40 of the cover edge 41 of the web 40 is slightly recessed radially and thus not visible or difficult to see from the outside, so that the aesthetic appearance of the lamp 1 is improved overall.
  • a circumferential gap S is formed between the cover 4, in particular the front-side cover edge 41, and the lamp housing 2, in particular the edge 3, a circumferential gap S is formed.
  • the cover 4 is preferably further centered with respect to the lamp housing 2; ie in particular transversely / radially in the light exit region L spanning plane.
  • the cover 4 can also rest circumferentially and preferably flat on the edge 3 and is preferably pressed by means of the first sealing lip 51 on the edge 3 in Appendix.
  • a projecting edge region 42 of the cover 4 can thus be provided, which protrudes beyond the edge 3, in order thus to harmoniously shape the appearance of the luminaire 1 from the outside.
  • the cover 4, except for a possibly provided web 40, is preferably formed flat, in order to form the overall appearance of the lamp 1 aesthetically harmonious.
  • the web 40 preferably protrudes with respect to the remaining cover 4 toward the transverse wall 7 or projects in a direction away from the remaining cover 4, which faces an inner region I of the luminaire housing 2.
  • the cover 4 on the side facing away from the inner region I of the lamp housing 2 43, in particular on the web 40 opposite side 43 and at least in a region 40 opposite the web structuring, preferably to the nearest cover edge 41 extends.
  • the appearance of the lamp can be formed as harmonious as possible from the outside in Buffalo of a corresponding bridge.
  • the locking profile 6 and, if present, the further latching profile can on one of the cover 4 and in particular the radially end-side cover edge 41 or the web 40 facing side of the edge 3 or on a side facing the edge 3 of the cover 4, in particular the radially end-side cover edge 41 or the web 40 may be provided.
  • the latching profiles 6 are preferably formed integrally with the cover 4 or the luminaire housing 2 or its edge 3.
  • a corresponding locking profile 6 can be provided for mounting in a simple manner and integrally with the corresponding component 2, 4.
  • this can be one outer appearance of the lamp 1 are designed to be as harmonious as possible, since no latching profiles 6 are present or recognizable from the outside.
  • the locking profile 6 and, if present, the further latching profile can be formed as in the space R between the edge 3 on the one hand and cover 4 (in particular the radially end-side cover edge 41 or the web 40) on the other hand protruding projection 8.
  • a comparatively simple trained locking profile 6 can be provided in a simple manner, in which the first sealing lip 51 can snap in a simple manner when inserting the cover 4 in the lamp housing 2.
  • the sealing lips 51, 52 are directed away from one another and preferably spread apart from one another. In this way, the above-described functions can be reliably provided, in which the sealing lips 51, 52 in opposite directions - ie towards each other - bias and thus each produce a relatively high contact pressure.
  • the second sealing lip 52 presses the first sealing lip 51 securely in its locking position and vice versa holds the first sealing lip 51, the second sealing lip 52 as well in safe investment to accomplish a total of a high sealing function at safe locking receptacle.
  • the first sealing lip 51 may have a greater cross section than the second sealing lip 52.
  • the first sealing lip 51 may have a higher spring constant than the second sealing lip 52.
  • the respective functions of the sealing lips 51, 52 can be met with the least possible use of materials.
  • the first sealing lip 51 can safely fulfill the holding function with stronger training, while the second sealing lip 52 can meet the corresponding bias by smaller configuration, while both fulfill their sealing function safely.
  • the seal 5 can be connected to the cover or the web 40 or to the luminaire housing 2 by means of a two-component injection technology.
  • the seal 5 is formed integrally with the cover 4 and the lamp housing 2.
  • the sealing lips 51, 52 can, as shown, be integrally formed in a part to form the seal 5. It is also conceivable that the sealing lips 51, 52 are provided separately to form the seal 5.
  • the luminaire housing 2 can have a circumferential guide web 9 for the cover 4 or the seal 5 or the web 40.
  • This guide web 9 is preferably located radially inward with respect to the seal 5 and extends toward the light exit region L.
  • it provides a secure guidance of the cover 4 when inserted into the lamp housing 2 to safely place the seal 5 at the intended position, so that the seal 5 - or the sealing lips 51, 52 - can safely perform their multiple functions.
  • the present invention is not limited by the above embodiments, insofar as it is covered by the subject matter of the following claims.
  • the positioning and fixing of the seal or its sealing lips 51, 52 are not limited by the present invention, provided that they extend between cover 4 and luminaire housing 2 and can safely fulfill their intended functions.
  • the design and dimensions of the luminaire components and seals and the choice of the respective materials are not limited by the present invention.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
  • Securing Globes, Refractors, Reflectors Or The Like (AREA)
EP17178913.4A 2016-07-14 2017-06-30 Luminaire Active EP3270055B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202016103785.9U DE202016103785U1 (de) 2016-07-14 2016-07-14 Leuchte

Publications (2)

Publication Number Publication Date
EP3270055A1 true EP3270055A1 (fr) 2018-01-17
EP3270055B1 EP3270055B1 (fr) 2018-12-19

Family

ID=59269860

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17178913.4A Active EP3270055B1 (fr) 2016-07-14 2017-06-30 Luminaire

Country Status (3)

Country Link
EP (1) EP3270055B1 (fr)
AT (1) AT16018U1 (fr)
DE (1) DE202016103785U1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102018001189A1 (de) * 2018-02-16 2019-08-22 Trilux Gmbh & Co. Kg Leuchte, insbesondere Feuchtraumleute

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2239498A1 (fr) * 2009-04-06 2010-10-13 Zumtobel Lighting GmbH Eclairage de recouvrement doté d'une lèvre d'étanchéité mobile

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19712778A1 (de) * 1997-03-26 1998-10-08 Etm Elastomer Technik Mosbach Strangförmiges Dichtungsprofil
FR2786254B1 (fr) * 1998-11-25 2001-02-09 Legrand Sa Luminaire, en particulier luminaire de type hublot ou applique, a joint d'etancheite entre le couvercle et le socle
JP6136259B2 (ja) * 2012-12-28 2017-05-31 岩崎電気株式会社 ケースのシール構造及びリング状のシール部材
DE202013101775U1 (de) * 2013-04-24 2014-07-28 Zumtobel Lighting Gmbh Leuchtenabdeckung für eine längliche Beleuchtungsanordnung
JP2014221604A (ja) * 2013-05-14 2014-11-27 西川ゴム工業株式会社 オープニングシール
EP2952668A1 (fr) * 2014-06-02 2015-12-09 Home Metal bvba Menuiserie en acier pour fenêtres et portes

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2239498A1 (fr) * 2009-04-06 2010-10-13 Zumtobel Lighting GmbH Eclairage de recouvrement doté d'une lèvre d'étanchéité mobile

Also Published As

Publication number Publication date
EP3270055B1 (fr) 2018-12-19
DE202016103785U1 (de) 2017-10-18
AT16018U1 (de) 2018-11-15

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